HYBRID ARM FOR AN INDEPENDENT REAR SUSPENSION FOR A MOTOR VEHICLE

摘要

The arm (12) comprises a wheel-side portion (22) for support of a wheel and a body-side portion (26) for connection to the vehicle body, the two arm portions (22, 26) being securely connected to each other by welding. According to a first embodiment of the invention, the wheel-side arm portion (22) is made of cast iron and the body-side arm portion (26) is made as a steel tubular piece. According to a variant of embodiment of the invention, the wheel-side arm portion (22) is made of cast aluminium and the body-side arm portion (26) is made as an extruded aluminium piece. It is thus possible to combine the high camber stiffness of the wheel-side portion made of cast iron or aluminium with the high compliance in case of impact of the body-side portion made of stamped or extruded steel or aluminium.